Effect of total ankle replacement on the 3-dimensional subtalar joint alignment in varus ankle osteoarthritis.
Subtalar joint
Total ankle replacement
Varus ankle osteoarthritis
Weight-bearing CT
Journal
Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons
ISSN: 1460-9584
Titre abrégé: Foot Ankle Surg
Pays: France
ID NLM: 9609647
Informations de publication
Date de publication:
Jul 2023
Jul 2023
Historique:
received:
06
01
2023
revised:
13
05
2023
accepted:
29
05
2023
medline:
5
7
2023
pubmed:
10
6
2023
entrez:
9
6
2023
Statut:
ppublish
Résumé
Varus ankle osteoarthritis (OA) is typically associated with peritalar instability, which may result in altered subtalar joint position. This study aimed to determine the extent to which total ankle replacement (TAR) in varus ankle OA can restore the subtalar alignment. Fourteen patients (15 ankles, mean age 61 ± 6 years) who underwent TAR for varus ankle OA were analyzed using semi-automated measurements based on weight-bearing computed tomography. Twenty healthy individuals served as a control group. All angles improved between preoperative and a minimum of 1 year (mean 2.1 years) postoperative and were statistically significant in 6 out of 8 angles (P < 0.05). Our findings indicate that talus repositioning after TAR restores the subtalar joint alignment which may improve hindfoot biomechanics. Future studies are required to implement these findings for TAR in presence of hindfoot deformity. IV.
Sections du résumé
BACKGROUND
BACKGROUND
Varus ankle osteoarthritis (OA) is typically associated with peritalar instability, which may result in altered subtalar joint position. This study aimed to determine the extent to which total ankle replacement (TAR) in varus ankle OA can restore the subtalar alignment.
METHODS
METHODS
Fourteen patients (15 ankles, mean age 61 ± 6 years) who underwent TAR for varus ankle OA were analyzed using semi-automated measurements based on weight-bearing computed tomography. Twenty healthy individuals served as a control group.
RESULTS
RESULTS
All angles improved between preoperative and a minimum of 1 year (mean 2.1 years) postoperative and were statistically significant in 6 out of 8 angles (P < 0.05).
CONCLUSIONS
CONCLUSIONS
Our findings indicate that talus repositioning after TAR restores the subtalar joint alignment which may improve hindfoot biomechanics. Future studies are required to implement these findings for TAR in presence of hindfoot deformity.
LEVEL OF EVIDENCE
METHODS
IV.
Identifiants
pubmed: 37296030
pii: S1268-7731(23)00103-0
doi: 10.1016/j.fas.2023.05.009
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
424-429Informations de copyright
Copyright © 2023 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest None.